diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-03-16 09:39:54 -0700 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-03-16 11:24:50 -0700 |
| commit | bb60ac4d2b59a3335b8f8bc145d7494d28ad13e2 (patch) | |
| tree | facd3ef4aa362c400426ec5785b1ac325ba65075 /board | |
| parent | 8230258498a8448aa5b210c1356174f99b1352b8 (diff) | |
Reduce RW BIOS data sections to 512K from 976K
This saves 500ms in the RW BIOS path and still leaves 130K
overhead from the current U-boot size (372K) which should be
more than enough for any future updates on stumpy/lumpy.
This should be re-visited if/when vboot is smart enough to
just read+validate the actual binary within the section.
BUG=chrome-os-partner:8518
TEST=boot lumpy/stumpy through RW BIOS path and gather
timestamps to see 500ms improvement.
Change-Id: Ia714b4b95245f02f6e781247f820ca915bb403f5
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/18372
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/chromebook-x86/coreboot/flashmap-8mb.dtsi | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/board/chromebook-x86/coreboot/flashmap-8mb.dtsi b/board/chromebook-x86/coreboot/flashmap-8mb.dtsi index 8e550b4a9c..70a655302b 100644 --- a/board/chromebook-x86/coreboot/flashmap-8mb.dtsi +++ b/board/chromebook-x86/coreboot/flashmap-8mb.dtsi @@ -141,16 +141,22 @@ rw-a-boot@0 { /* Alignment: no requirement (yet). */ label = "fw-main-a"; - reg = <0x00210000 0x000effc0>; + reg = <0x00210000 0x0007ffc0>; type = "blob boot"; }; rw-a-firmware-id@0 { /* Alignment: no requirement. */ label = "rw-fwid-a"; - reg = <0x002fffc0 0x00000040>; + reg = <0x0028ffc0 0x00000040>; read-only; type = "blobstring fwid"; }; + rw-a-unused@0 { + label = "rw-unused"; + reg = <0x00290000 0x00070000>; + type = "wiped"; + wipe-value = [ff]; + }; /* ---- Section: Rewritable slot B ---- */ rw-b@0 { @@ -175,16 +181,22 @@ rw-b-boot@0 { label = "fw-main-b"; /* Alignment: no requirement (yet). */ - reg = <0x00310000 0x000effc0>; + reg = <0x00310000 0x0007ffc0>; type = "blob boot"; }; rw-b-firmware-id@0 { label = "rw-fwid-b"; /* Alignment: no requirement. */ - reg = <0x003fffc0 0x00000040>; + reg = <0x0038ffc0 0x00000040>; read-only; type = "blobstring fwid"; }; + rw-b-unused@0 { + label = "rw-unused"; + reg = <0x00390000 0x00070000>; + type = "wiped"; + wipe-value = [ff]; + }; /* * This space is currently unused and reserved for future |